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Joseph Walter
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Sugar Land, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Fuel cell apparatus and method for downhole power systems
Patent number
10,113,398
Issue date
Oct 30, 2018
Schlumberger Technology Corporation
Wenlin Zhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Fuel cell apparatus and method for downhole power systems
Patent number
9,312,557
Issue date
Apr 12, 2016
Schlumberger Technology Corporation
Wenlin Zhang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Long duration fuel cell system
Patent number
7,096,955
Issue date
Aug 29, 2006
Schlumberger Technology Corporation
Wenlin Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
FUEL CELL APPARATUS AND METHOD FOR DOWNHOLE POWER SYSTEMS
Publication number
20190071952
Publication date
Mar 7, 2019
SCHLUMBERGER TECHNOLOGY CORPORATION
Wenlin Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
FUEL CELL APPARATUS AND METHOD FOR DOWNHOLE POWER SYSTEMS
Publication number
20160201436
Publication date
Jul 14, 2016
SCHLUMBERGER TECHNOLOGY CORPORATION
Wenlin Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HARVESTING VIBRATION FOR DOWNHOLE POWER GENERATION
Publication number
20090166045
Publication date
Jul 2, 2009
SCHLUMBERGER TECHNOLOGY CORPORATION
Rodney J. Wetzel
E21 - EARTH DRILLING MINING
Information
Patent Application
Fuel cell apparatus and method for downhole power systems
Publication number
20060257697
Publication date
Nov 16, 2006
SCHLUMBERGER TECHNOLOGY CORPORATION
Wenlin Zhang
E21 - EARTH DRILLING MINING
Information
Patent Application
Method and apparatus for downhole pipe or casing repair
Publication number
20060163075
Publication date
Jul 27, 2006
Wenlin Zhang
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
Harvesting Vibration for Downhole Power Generation
Publication number
20060086498
Publication date
Apr 27, 2006
SCHLUMBERGER TECHNOLOGY CORPORATION
Rodney J. Wetzel
E21 - EARTH DRILLING MINING
Information
Patent Application
Long duration fuel cell system
Publication number
20030116321
Publication date
Jun 26, 2003
Wenlin Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE